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Chucks for machine tools for machining rotating tubular workpieces

A chuck, workpiece technology, used in metal processing, tool holder accessories, metal processing equipment, etc.

Inactive Publication Date: 2016-11-16
SMS MEER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in a large diameter and length of the chuck with a correspondingly large mass which is disadvantageous for operation

Method used

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  • Chucks for machine tools for machining rotating tubular workpieces
  • Chucks for machine tools for machining rotating tubular workpieces
  • Chucks for machine tools for machining rotating tubular workpieces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Machine tools for cutting threads or threaded joints at the ends of pipe fittings figure 1 The chuck 1 shown in includes a top plate 2 and a rearwardly coupled housing ring. In order to accommodate the pipe to be processed (not shown), the chuck 1 has a central through hole 4, the center 5 of which coincides with the axis of rotation of the pipe rotating in the chuck. On the front side of the top plate 2 and distributed uniformly over the circumference, there are arranged, covered by the cover 6 , adjustable radially with respect to the center or axis of rotation 5 , correspondingly with clamping jaws 8 a , 8 b , 8 c . Three clamping slides 7a, 7b, 7c, jaws 8a, 8b, 8c relative to the center or axis of rotation 5 (see image 3 ) centrally clamp the fitting.

[0017] In order to adjust the clamping slides 7a, 7b, 7c with the clamping jaws 8a, 8b, 8c in the direction towards the center of the chuck 1 or the axis of rotation 5, each clamping slide 7a, 7b, 7c is tangent A...

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PUM

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Abstract

The invention relates to a chuck (1) of a machine tool for machining tubular workpieces rotating around an axis of rotation (4) coincident with the center of the chuck, comprising at least two clamping slides (7a, 7b, 7c), It is designed radially adjustable with respect to the axis of rotation (4) for loosening and clamping the workpiece, is distributed on the end side on the circumference of the chuck top plate (2) and is arranged evenly distributed on the chuck The peripheral surface of the top plate (2) carries clamping jaws (8a, 8b, 8c). If for each clamping slide (7a, 7b, 7c) is associated on the one hand, arranged in the top plate (2) tangential to the axis of rotation (4), loaded by the adjustment means, with a longitudinal side configured as Transversal slides (9a, 9b, 9c) of the slider (11) of the rack (12), and on the other hand associated with separate gears (19a, 19b, 19c) meshing with the rack (12), improve In order to ensure the running performance of clamping pipes centrally and / or compensatingly, each clamping slide (7a, 7b, 7c) is provided with a driving claw (17) at its underside, which is used for transversal sliding The movement of the parts (9a, 9b, 9c) is diverted to the adjustment movement of the clamping slides (7a, 7b, 7c) extending perpendicular to the axis of rotation (4) and is arranged in the transverse slides (9a, 9b, 9c) The chute-like guide groove (16) in the slider (11) of the slider (11) engages, and wherein, for the gears (19a, 19b, 19c) are associated coupling pinions ( 20).

Description

technical field [0001] The invention relates to a chuck for a machine tool for machining tubular workpieces rotating about an axis of rotation coinciding with the center of the chuck, comprising at least two clamping slides which are radially adjustable relative to the axis of rotation It is designed for loosening and clamping workpieces, is distributed on the peripheral surface of the chuck top plate at the end side and evenly distributed on the peripheral surface of the chuck top plate, and carries the clamping jaws. Background technique [0002] A machine tool is known from DE 10 2009 053 679 A1 for machining pipe ends of tubular workpieces rotating about an axis of rotation, in particular for cutting threaded joints. The pipe thread is usually produced by a clamped tubular workpiece or the pipe end of the pipe in a single pass over the tool, which is usually arranged in the rotor, wherein the movement of the tool is controlled digitally. For clamping the pipe, the machi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B31/16
CPCB23B31/16066B23B2270/025B23B2231/22Y10T279/1906Y10T279/1946Y10T279/1913Y10T279/1921B23B31/16083B23B2231/00
Inventor K-J.埃泽R.德里克斯
Owner SMS MEER